The Fluke FLUKE-BT521 Battery Tester from the Fluke 500 Series is a robust portable handheld device engineered for comprehensive testing of individual stationary batteries and battery banks in critical backup applications. Featuring a maximum voltage rating of 600V and compatibility with all battery chemistries, it enables precise maintenance, troubleshooting, and performance evaluation.
This analyzer measures internal resistance with an outstanding 0.001mΩ resolution and supports both DC and AC voltage measurements up to 1000V, making it suitable for high-voltage systems. It incorporates temperature sensing through intelligent test probes, allowing temperature-correlated diagnostics critical for battery health assessment.
The automatic sequence testing mode can store data for up to 450 batteries per profile, streamlining large-scale battery surveys. Measurements including voltage, resistance, and temperature are automatically logged with timestamps, facilitating detailed trend analysis. Data can be transferred wirelessly to mobile apps for immediate review or downloaded via USB interface to PC software for histogram visualization and PDF report generation.
The device is powered by a rechargeable 7.4V 3000mAh lithium-ion battery pack, enabling more than eight hours of continuous operation. Safety and environmental compliance include 600V CAT III classification, electromagnetic compatibility to IEC61326, and adherence to RoHS China environmental standards.
Ideal for maintenance personnel managing UPS systems, critical backup installations, and onsite battery string inspections, the FLUKE-BT521 aids in acceptance testing post battery replacement or installation. It supports on-site logging, remote analysis, and offers automated diagnostics to enhance operational reliability.
Package contents include the battery analyzer, 4-wire test pin set, BTL10 basic test leads, TL175 TwistGuard™ test leads with adapter, BTL21 intelligent test probe set with extender and integrated temperature sensor, i410 AC/DC current clamp, BP500 lithium-ion battery, and BC500 AC charger.
Measures internal resistance with 0.001mΩ resolution for precise assessment. Supports DC and AC voltage up to 1000V, suitable for high-voltage systems. Integrated temperature sensing enables correlated diagnostics via intelligent test probes.
Automatic sequence mode stores up to 450 batteries per profile for efficient surveys. Wireless data download and PC software allow trend analysis and PDF report generation. Powered by rechargeable 7.4V 3000mAh lithium-ion pack for over eight hours operation.
Meets 600V CAT III safety and international compliance standards including UL2054 and IEC62133. Ideal for UPS maintenance, acceptance testing, and onsite logging of stationary battery banks. Explore Fluke battery testing instruments and other measuring tools at EnvMart for industrial and laboratory applications.
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